[RupertPupkin]

Has anyone ever run race fuel in their 325/ 328/ 330?

Like 97, 100 and up octane? US spec not other parts of the world where it is measured in RON

Curious if it would really do much. I know boosted cars love it and can benefit and run higher boost and adjust timing.

What is the max octane our engine will adapt for, and what sort of benefits can be had? We have a decent compresion ratio, like 10.8 to 1 I think but just curious.

[jc5988]

Originally Posted by jimmydever

Has anyone ever run race fuel in their 325/ 328/ 330?

Like 97, 100 and up octane? US spec not othe rparts of the country where it is measure RON

Curious if it would really do much. I know boosted cars love it and can benefit and run higher boost and adjust timing.

What is the max octane our engine will adapt for, and what sort of benefits can be had? We have a decent compresion ratio, like 10.8 to 1 I think but just curious.

as most tuning company have option for higher oct fuel timing, dont think stock tune will do much for you.

[RupertPupkin]

true. Just curiosity not really looking for a miracle, plus its expensive.

[RupertPupkin]

This was on an E46 M3
http://www.m3forum.net/m3forum/showthread.php?t=36246

Dude says our cars seem to "max out at 96-96 octane."

Wonder if most raod cars, or bmws have tuning built in to take advantage of a 95 octane fuel. Might try some just for shits and giggles to see

[Hooy]

AA told me that if I ran 50/50 race and 93 oct, power would jump.

[Bavarian Tech]

Theoretically any car would benefit from higher octane, just some more than others considering gas now a days is so shitty.. N52 already have a 10:7 compression ratio so it cant hurt by any means, a few gallons would do..no need for more than 5 tops IMO

[jc5988]

Originally Posted by jimmydever

This was on an E46 M3
http://www.m3forum.net/m3forum/showthread.php?t=36246

Dude says our cars seem to "max out at 96-96 octane."

Wonder if most raod cars, or bmws have tuning built in to take advantage of a 95 octane fuel. Might try some just for shits and giggles to see

please let us know how it went , i think it will take atleast a tank for ecu to adopt though....

dont ment to disappoint u, but our car are not dual purpose build like M3 .

[RupertPupkin]

Yea I would assume it would take some time to adapt, and well see. Might not do it. I was just curious if anyone has done it and if it made any sort of difference, or if they had any problems.

Originally Posted by jc5988

please let us know how it went , i think it will take atleast a tank for ecu to adopt though....

dont ment to disappoint u, but our car are not dual purpose build like M3 .

[RupertPupkin]

I was mainly curious because of all the threads on here with people trying to get the 3 stage manfiold, tunes, etc.

It seemed weird no one really mentioned trying race fuel. Obviously expensive, but for the thousands spent on manifold and tune and header, wouldn't you top it off with race fuel to see what the max these N52 can put out?

[YourRemotePilotSpeaking]

Originally Posted by RupertPupkin

I was mainly curious because of all the threads on here with people trying to get the 3 stage manfiold, tunes, etc.

It seemed weird no one really mentioned trying race fuel. Obviously expensive, but for the thousands spent on manifold and tune and header, wouldn't you top it off with race fuel to see what the max these N52 can put out?

I just put a gallon of 110 octane in @$9.00/Gallon, on top of what was a quarter of a tank of 92 octane, which currently runs $3.25 a gallon; takes $80 bucks to fill the tank @$3.25/gallon. I have a 2010 X5 M Sport with the N52B30, xDrive30i, and I can tell you it is a completely different driving experience in comparison to the average 92 octane you would find at any station around here. The motor sounds entirely different in my opinion, much like an eargasm over the sound much like that of an Indycar, and it most certainly can be felt in terms of having more torque as I accidentally gave my passenger whiplash. It sounds like a machine that prr's, that is if the T1000 Terminator prr'ed. Considering I drive this vehicle for a living, let me be the first to say in response to you; it is an entirely different vehicle with just a gallon of 110 on top of a 1/4 tank of 92. I'm too tired to do the real math here, but wanted to say try it out for yourself. Sorry to register, just to revive this. I love my X5 M Sport, and it's N52. Very little info on the N52 in an X5, so I'm here.

[Noir]

Originally Posted by YourRemotePilotSpeaking

I just put a gallon of 110 octane in @$9.00/Gallon, on top of what was a quarter of a tank of 92 octane, which currently runs $3.25 a gallon; takes $80 bucks to fill the tank @$3.25/gallon. I have a 2010 X5 M Sport with the N52B30, xDrive30i, and I can tell you it is a completely different driving experience in comparison to the average 92 octane you would find at any station around here. The motor sounds entirely different in my opinion, much like an eargasm over the sound much like that of an Indycar, and it most certainly can be felt in terms of having more torque as I accidentally gave my passenger whiplash. It sounds like a machine that prr's, that is if the T1000 Terminator prr'ed. Considering I drive this vehicle for a living, let me be the first to say in response to you; it is an entirely different vehicle with just a gallon of 110 on top of a 1/4 tank of 92. I'm too tired to do the real math here, but wanted to say try it out for yourself. Sorry to register, just to revive this. I love my X5 M Sport, and it's N52. Very little info on the N52 in an X5, so I'm here.

Godspeed, Mister.

[hassmaschine]

Stock N52 ignition mapping is actually fairly aggressive. So is the stock knock sensitivity. I think you would notice something, but am unsure how much - or if it would be worth it. $9 a gallon is pretty expensive.

also I wouldn't do it if you have stock headers/cats.

[Eagle1oh7]

Yes, when I tracked last year. Can't tell if it made a diff. I want to run a blend and dyno, but my financials suck this year.

[Fritzer]

I doubt that it would be much different on a stock ECU. Just burns faster....

Originally Posted by Eagle1oh7

but my financials suck this year.

I feel ya on that! BTW your build sounds sick, got any pictures?

[Eagle1oh7]

Originally Posted by Fritzer

I doubt that it would be much different on a stock ECU. Just burns faster....

I feel ya on that! BTW your build sounds sick, got any pictures?

Thanks man! Coin has been low since Xmas since I went all out then I got a speeding ticket, then I had to go to weddings, then my wife got into an accident and I had to do some home repairs and put a new battery in the E90. Fuck this year, I want it to end already!

[Blueeyesredpanda]

Originally Posted by Eagle1oh7

Thanks man! Coin has been low since Xmas since I went all out then I got a speeding ticket, then I had to go to weddings, then my wife got into an accident and I had to do some home repairs and put a new battery in the E90. Fuck this year, I want it to end already!

That trunk

[Fritzer]

Originally Posted by Eagle1oh7

Thanks man! Coin has been low since Xmas since I went all out then I got a speeding ticket, then I had to go to weddings, then my wife got into an accident and I had to do some home repairs and put a new battery in the E90. Fuck this year, I want it to end already!

Damn, sounds like a crazy 2019 for you so far! Your build looks awesome, hope you bring it out to some meets sometime!!

[bluewater328]

Originally Posted by Eagle1oh7

Thanks man! Coin has been low since Xmas since I went all out then I got a speeding ticket, then I had to go to weddings, then my wife got into an accident and I had to do some home repairs and put a new battery in the E90. Fuck this year, I want it to end already!

You're not getting financial sympathy from me with the money you spent on that set up Ain't a lot of people running Ohlins.

[Eagle1oh7]

Originally Posted by bluewater328

You're not getting financial sympathy from me with the money you spent on that set up Ain't a lot of people running Ohlins.

Man that was spent in 2017 the year prior and was carefully planned for installation early last year.